Imjärvi
Heinola, FinlandView mapDirections
Syke publishes the water-quality measurements for Imjärvi. Here is what has been measured.
- 57 ft max depth
- Limited data
Imjärvi in Heinola, Finland has official water-quality measurements, shown as reported. Water clarity: 2.5 m visibility. Phosphorus: 7.3 µg/L. Chlorophyll-a (algae): 5.6 µg/L. Maximum depth: 57.4 ft.
How Imjärvi is classified
Imjärvi in Finland is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Finnish Environment Institute (Syke) and the ELY Centres.
Imjärvi is a lake in Heinola County, Finland with a maximum depth of 57 feet.
Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2021-11-08. Methodology: how these readings are compared.
What Imjärvi is good for
From access and monitoring records, not editorial picks.
- Deep water57.4 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Imjärvi is safe to swim in today is a call for the Finnish Environment Institute (Syke) and the ELY Centres and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Imjärvi
These are the measurements Syke publishes for Imjärvi. More on the source.
Moderate clarity, visible to about 8.2 ft. Phosphorus 7.3 µg/L. Chlorophyll-a 5.6 µg/L. TSI 42.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.5m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 7.3µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 5.6µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 42 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Imjärvi
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
17.5 m
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Frequently asked questions about Imjärvi
Where is Imjärvi?
- Imjärvi is a lake in Heinola, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Imjärvi?
- Imjärvi in Heinola, Finland has official water-quality measurements, shown as reported. Water clarity: 2.5 m visibility. Phosphorus: 7.3 µg/L. Chlorophyll-a (algae): 5.6 µg/L. Maximum depth: 57.4 ft.
Is Imjärvi safe to swim in?
- Imjärvi has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
How deep is Imjärvi?
- Imjärvi has a maximum depth of 57.4 feet.
Explore Imjärvi across LakeQuality
More lakes in Finland
Where this data comes from
22 measurements from 4 monitoring stations, 2019–2021. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Finnish Environment Institute (Syke) and ELY Centres
syke-vesla22 samples · 2019–2021
Analytical methods
- SYKE VESLA
Monitoring station identifiers (4)
14528145421455068789
Authority classifications are shown as the authority published them. See where the data comes from and data sources.